On WoWBeez' WOTLK Servers All DK Are Currently Bugged (Is Well Known By All Admins Aswell As Players, So Avoid PvP).
If You Specc in Unholy Theres A Ghoul Spell, 3rd Line - Far Right I Believe. Something About Being Brought Back As Ghoul Upon Death.
Put Points In It.
You Will Now Get "Miss" For EVERY Attack For Upto 5Mins Of Constant Combat (I.E, Unable To Solo Sunwell), Get Some Mates, Farm Northrend For Gear - Easy.
If You Do 5Mins Of Constant Combat, And You Die. Simply Relog - Working Again.
5Mins Is A Rough Estimate, Could Be 10. I Honestly Dont Know But It Isnt Long Enough To 3Man Sunwell (:
P.S - Hitting Shift Is Fun.